摘要:
The present invention relates to novel polymer compositions, to a process for their manufacturing, to the use of said polymer compositions for modifying the viscosity of aqueous compositions,and to water-borne coating compositions containing the novel polymer compositions as thickeners. The polymer compositions comprise a polymer material which is obtainable by reacting: a) a polymer P1 having at least one functional group of the formula (I), where k is an integer from 0 to 4; n is 0 or 1 p is an integer from 1 to 10, the number average of p being from 1.5 to 10; Q is a divalent moiety selected from the group consisting of -O-and -NH-; P is a p-valent hydrophilic neutral polymer radical;and R1 is as defined in the claims; with b) a succinic anhydride of the formula (II) where R is C4-C24-alkyl or C4-C24-alkenyl.
摘要:
A pigment dispersant is disclosed comprising a tri-block copolymer having a first block comprising a glycidyl(meth)acrylate reacted with a napthoic acid, a second block comprising (meth)acrylic acid alkyl esters, and a third block comprising (meth)acrylic acid alkyl esters, wherein said third block is different from said second block. The dispersant is suited for use in a nanoparticulate dispersion comprising pigment particles having an average primary particle size of less than 100 nm.
摘要:
A pigment dispersant comprising a graft copolymer is described. The graft copolymer comprises a backbone having polymerized vinyl imidazole groups and side chains from macromonomers. The vinyl imidazole comprises 2 percent to 20 percent by weight of the graft copolymer and the macromonomer comprises 55 percent to 85 percent by weight of the graft copolymer. The pigment dispersant is useful for forming pigment dispersions that can be used in solvent borne coating compositions.
摘要:
A clay slurry is described using smectite clay, water, and a defined phosphonate additive that is hydrolytically stable over time. The viscosity of the clay slurry remains pourable and relatively unchanged over time compared to prior art slurries. The slurry is useful to provide rheological control to paints and coatings and is particularly useful as an anti-bleed additive for concrete.
摘要:
The present invention pertains to compositions containing a first population of water-insoluble particles and a polyol poly(hydroxy fatty acid) ester emulsifier, such as for example coatings or paint compositions containing inorganic pigment dispersed in an organic binder and/or organic solvent. The present invention furthermore relates to methods of producing such compositions and various uses.
摘要:
The instant invention relates to a liquid composition comprising a mixture of: (1) water and/or a polar solvent; (2) a colloidal dispersion of mineral particles; and (3) a phosphonate terminated poly(oxyalkene) polymer; the invention also relates to process for stabilizing aqueous and/or solvent-based dispersions of mineral particles comprising the step of adding an efficient stabilising amount of a phosphonate terminated poly(oxyalkene) polymer.
摘要:
A pigment dispersing polymer comprising a backbone having one or more urea groups and having polymeric side chains extending therefrom. The dispersing polymer may be formed from the reaction of a compound having one or more carbodiimide groups with acid functional resins such as acid functional polyesters, acid functional acrylics, acid functional polyethers, and fatty acids.
摘要:
The invention provides a novel bio-based dispersant comprising the reaction product of a natural triglyceridic oil, fatty acid oil or fatty acid oil derivative wherein said natural triglyceridic oil, fatty acid oil, or fatty acid oil derivative containing greater than about 80 percent of unsaturated or conjugated unsaturated fatty acids with a substrate capable of undergoing an ene or Diels Alder reaction to form an adduct that is further esterified and/or neutralized with an alkanolamine or alkoxylated alkanolamine.